I built Lihenium solo — an all-in-one doc scanner, PDF editor & secure vault for Android.

Hey Product Hunt! 👋

I'm the solo developer behind Lihenium: Scan PDF & Vault, and I'm launching on March 31st.

I built this because I was frustrated using 5 different apps just to scan, edit, compress, and secure documents. So I spent months building everything into one app.

Here's what Lihenium does:

📄 Smart Document Scanner with auto-crop

🔒 Secure Vault to lock private PDFs with password

✏️ PDF Editor — annotate, merge, split

🗜️ Image & PDF compression

📁 Doc Library to organize everything

I'm a solo dev from India, built this entirely on my own — no team, no funding.

Would love your honest feedback:

👉 What's the #1 feature you look for in a document app?

👉 What frustrates you most about current scanning apps?

Launching in 2 days — feel free to ask me anything about the app or my journey building it! 🚀